Gold soldee



Patented Sept. 25, 1923.

UNITED STATES PATENT OFFICE.

I WILLIAM SHEFF AND HENRY WM. SHEFF, F BROOKLYN, NEW YORK.

GOLD SOLDER.

No Drawing. App1ication filed November 22, 1921. Serial No. 517,084.

To all whom it may concern: Preferably we form this solder by melt- Beit known that we, WILLIAM Snnrr and ing the above-mentioned ingredientsin a HENRY W. SHErr, both citizens of the crucible under the propertemperature until United States, and residents of the city of they areall melted and form an alloy. The 45 6 New York, borough of Brooklyn, inthe proportions of the ingredients are approxicounty of Kings and Stateof New York, mately as follows, although certain variahave invented anew and Improved Gold tions in the proportions are possible withoutSolder, of which the following is a full, departing from the spirit andessence of the clear, and exact description. invention: gold-62% to 65%,niokcl 50 10 This invention relates to a solder for gold, to 10%,zinc-Pitt to 17%, and copper-- and has particular reference to a solderused to 14}%. in connection with the manufacture of jew- For example, aparticular alloy which elry made of so called white gold. may be formedin accordance with our in- An object of the invention is to provide avention includes the use of gold approxi- 55 15 simple, effective andeasily manipulated mately 60%, nickel approximately 7%, zinc solder forgold. approximately 16%, and copper approxi .A further ob ect resides inthe provision mately 15%. of a solder that has the proper color to cornThe particular method used 111 the formaform to the color of the jewelryor material tion of this alloy and described above is c0 20 with whichit is being used and yet which only one way in which it can be produced,

can be easily manipulated in the process of any well-known metallurgicalmethod. suitapplication. able for the production of alloys being with- Astill further object resides in the proin the province of the skillfulmetallurgists. vision of a solder, which, when used, will hat we claimis: 65

2 have a very long life and at all times retain 1. A composition ofmatter for use as a.

its original color. solder for gold, which comprises gold ap- A furtherobject resides in the provision proximately 60%, nickel approximately7%, of the particular combination of ingredients zinc approximately 16%,and copper apand the proportions thereof hereinafter deproximately 15%.70

scribed and. claimed. 2. A composition of matter for use as a Ourinvention comprises a solder for gold solder for gold, which comprisesgold 62% which is composed of the following ingreto 65%, nickel 7% to10%, zinc 14% to 17%, clients, namely, gold, nickel, zinc and copandcopper 13% to 14l 1-%. per. This solder is adapted to be used in 3. Acomposition of matter for use as a, 75

the soldering of ieWelry made of so called solder for gold, whichcomprises gold aphigh carat gold and is adapted not only proximately tonickel approxito be efficient as a solder, but to retain its mately 7%to 10%, zinc approximately 141% particular color indefinitely, which isa very to 17%, and copper approximately 13% important feature by reasonof the contrast to 15%.

40 between it and the color of the gold with WILLIAM SHEFF.

which it is used if it did not retain its color. HENRY WM. SHE-FF.

